Finding the Fourth Proportional to 9,124.49, 12,591.78 and 4,932.74

Step by Step Solution

1. Step 1: Write the proportion equation
   9,124.49 : 12,591.78 = 4,932.74 : x
2. Step 2: Convert to fraction form
   9,124.49/12,591.78 = 4,932.74/x
3. Step 3: Cross multiply
   9,124.49x = 12,591.78 × 4,932.74
4. Step 4: Simplify right side
   9,124.49x = 62,111,976.88
5. Step 5: Solve for x
   x = 62,111,976.88/9,124.49
6. Step 6: Final answer
   x = 6,807.17